Disabling SSL/early TLS to safeguard payment data

I got a notice from Paypal concerning this.
June 30, 2018 is the deadline for and implementing a more secure encryptio=
n protocol =E2=80=93 TLS 1.1 or higher (TLS v1.2 is strongly encouraged) in=
order to meet the PCI Data Security Standard (PCI DSS) for safeguarding pa=
yment data.
For Firefox and Seamonkey
In about:config, set security.tls.version.min to 2 to prevent protocols low=
er than TLS 1.1 from being used.
Reference: http://kb.mozillazine.org/Security.tls.version.*
Andy